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HASTELLOY

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الصين الصانع الخاص الصلب عالية الجودة سبائك النيكل على أساس Hastelloy G3

Hastelloy G3 is a nickel-molybdenum alloy with excellent resistance to pitting, corrosion, and stress-corrosion cracking plus, thermal stability superior to that of alloy G3. In addition, this nickel steel alloy has great resistance to knife-line and heat–affected zone attack. Alloy G3 also withstands sulfuric, acetic, formic and phosphoric acids, and other non-oxidizing media. Furthermore, this nickel alloy has excellent resistance to hydrochloric acid at all concentrations and temperatures. Hastelloy G3’s distinguishing feature is its ability to maintain excellent ductility during transient exposures to intermediate temperatures. Such exposures are routinely experienced during heat treatments associated with fabrication.

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Model: Hastelloy G3
الماركة: RONSCO
Code: Alloy1996HG3


HASTELLOY  G3

Hastelloy G3 is a nickel-molybdenum alloy with excellent resistance to pitting, corrosion, and stress-corrosion cracking plus, thermal stability superior to that of alloy G3. In addition, this nickel steel alloy has great resistance to knife-line and heat–affected zone attack. Alloy G3 also withstands sulfuric, acetic, formic and phosphoric acids, and other non-oxidizing media. Furthermore, this nickel alloy has excellent resistance to hydrochloric acid at all concentrations and temperatures. Hastelloy G3's distinguishing feature is its ability to maintain excellent ductility during transient exposures to intermediate temperatures. Such exposures are routinely experienced during heat treatments associated with fabrication.

Limiting Factors of Hastelloy G3
Alloy G3 has poor corrosion resistance to oxidizing environments, therefore, it is not recommended for use in oxidizing media or in the presence of ferric or cupric salts because they may cause rapid premature corrosion failure. These salts may develop when hydrochloric acid comes in contact with iron and copper. Therefore, if this nickel steel alloy is used in conjunction with iron or copper piping in a system containing hydrochloric acid, the presence of these salts could cause the alloy to fail prematurely.

In what forms is Hastelloy G3?

● ورقة

● لوحة
● شريط
● أنبوب (ملحوم وغير ملحوم)
● التركيبات (مثل الفلنجات ، والستائر المنزلقة ، والستائر ، وأعناق اللحام ، والمفاصل ، وأعناق اللحام الطويلة ، ولحامات التجويف ، والأكواع ، والمحملات ، والنهايات ، والمرتجعات ، والأغطية ، والصلبان ، والمخفضات ، وحلمات الأنابيب)

What are the characteristics of Hastelloy G3?
● يحافظ على ليونة ممتازة أثناء التعرض العابر لدرجات حرارة متوسطة
● مقاومة ممتازة للتنقر والتآكل والتشقق الناتج عن الإجهاد والتآكل
● مقاومة ممتازة لخط السكين وهجوم المنطقة المتأثرة بالحرارة
● مقاومة ممتازة لأحماض الخليك والفورميك والفوسفوريك وغيرها من الوسائط غير المؤكسدة
● مقاومة حمض الهيدروكلوريك في جميع التركيزات ودرجات الحرارة
● Thermal stability superior to alloy G3

التركيب الكيميائي (٪)

Ni Mo Fe C Co Cr Mn Si
65.0 دقيقة 28.5 1.5 .01 max 3.0 ماكس 1.5 3.0 ماكس .10 max
Ti W Al Cu



.2 max 3.0 ماكس .50 max .20 max



In what applications is Hastelloy G3 used?

● العمليات الكيميائية

● أفران تفريغ
● المكونات الميكانيكية في البيئات المختزلة
● Fabrication with Hastelloy G3
● Problems associated with fabrication of alloy G3 components should be minimized with alloy G3 due to its improved thermal stability. A low carbon content permits alloy G3 to be used in the as-welded condition. Hastelloy G3 has good overall forming and welding characteristics. This alloy can be forged or otherwise hot-worked, providing that it is held at 2250° F for a sufficient amount of time to bring the entire piece to temperature. Since it is a low carbon alloy, the use of lower hot finishing temperatures may be necessary to achieve grain size control. It may also be formed by cold working. Although it does work-harden somewhat rapidly, G3 alloy components can be made using all common cold forming techniques. All common welding techniques may be used with alloy G3, however, oxyacetylene and submerged arc welding processes are not recommended when the fabricated item is to be used in corrosive service.

مواصفات ASTM
الأنابيب Smls الأنابيب الملحومة أنبوب Smls أنبوب ملحوم ورقة لوحة شريط تزوير مناسب
B622 B619 B622 B626 B333 B335 B564 B366
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